Bokt.nl

*Jolanda* schreef:

Hoor net dat er hier in de buurt (kop van NH) weer nieuwe gevallen bij komen.
Ik vind het doodeng, wat kun je er nou aandoen? Maar een paar uurtjes op het land en de rest op stal/paddock?
Hoe is het in de rest van nederland?

DubbelDun schreef:

Vergeet niet dat het nu 's nachts ook weer kouder is. Zo tegen vorst aan heel vroeg in de ochtend. Dat is voor mij sowieso al reden om ze niet zolang op het gras te hebben.

*Jolanda* schreef:

DubbelDun schreef:

Vergeet niet dat het nu 's nachts ook weer kouder is. Zo tegen vorst aan heel vroeg in de ochtend. Dat is voor mij sowieso al reden om ze niet zolang op het gras te hebben.

Deze liep ook niet dag en nacht op het land, was ook geen jong dier...

Djini schreef:

Op het voorpagina nieuws staat nu dat er een vermoedelijke oorzaak van atypische myopathie bekend is; namelijk een schimmel die groeit in esdoorn bladeren/taken.
Ik vroeg me nou dus af of de bokkers hier, waarvan één of meerdere dieren met de aandoening te maken hebben gehad, inderdaad kunnen bevestigen dat ook bij hen deze soort boom in/bij de wei groeit... Zijn er bokkers die dat kunnen (en willen) bevestigen?

DubbelDun schreef:

@Djni: bedoel je de Rhytisma acerinum ??

Citaat:

Ingestion of wilted or dried leaves of
Acer rubrum (red maple) may result in a fatal syndrome accompanied by the emission of colored urine. However, the clinical
signs result from a hemolytic process which has no myopathic component [36,37].

Citaat:

Red Maple Trees

Red maple trees are some of the most spectacular trees to behold in the fall. The deep crimson leaves are beautiful, but toxic, particularly to horses. The leaves while alive and on the trees are not poisonous, but once they fall off the tree and wilt, they can be deadly.

Horses are most often exposed as the leaves fall from the trees in the fall, or if a branch is blown off of a tree into a pasture by a storm and the leaves wilt on the broken branch. The toxin present in these wilted leaves is unidentified at this point in time. Despite that, we know very well the damage it can cause.

Once ingested by the horse, the toxin begins to destroy the horse's red blood cells. As the red blood cells continue to burst, severe anemia (lack of red blood cells) can occur. The destruction of the red blood cells causes other problems--once a red blood cell is destroyed, the hemoglobin from inside the cell is free in the bloodstream. The hemoglobin is filtered by the kidney, but the kidney is damaged in the process. Therefore, horses poisoned by the red maple toxin are battling severe anemia (which hampers the ability to carry oxygen to their body's cells) and kidney disease.

If a horse eats red maple leaves, he will begin to act depressed and weak within two days. As the horse's body begins to have trouble transporting oxygen to the cells, his heart and respiratory rates will rise. Affected horses will also have icteric mucous membranes (a yellowish tinge to their gums and sclera, the white around the eye).

A horse which has eaten wilted red maple leaves is treated supportively, but has a poor prognosis for survival. He is given intravenous fluids to flush his kidneys (diuresis) in an effort to keep them working. He might require oxygen, and if he's severely anemic, he might receive blood transfusions.

One reference cites that as little as three pounds of wilted leaves can be fatal to an adult horse. Of course, the best treatment is prevention. Once the offending tree is identified, simply ensure that your horse is not exposed to the wilted leaves. Remove storm-blown branches from paddocks or pastures immediately. If these trees are close to your fenceline, it might be prudent to remove the tree.

The red maple or scarlet maple is found throughout the eastern United States and southeastern Canada. This tree is a tall hardwood with green leaves that have three large "fingers" or points and five prominent veins in the leaves. The leaves of this tree turn a brilliant crimson and sometimes yellow in the fall.